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occt/src/gp/gp_Ax3.cxx
2012-03-05 19:23:40 +04:00

90 lines
1.8 KiB
C++
Executable File

// File: gp_Ax3.cxx
// Created: Tue Aug 3 12:42:36 1993
// Author: Laurent BOURESCHE
// <lbo@nonox>
#include <gp_Ax3.ixx>
//=======================================================================
//function : gp_Ax3
//purpose :
//=======================================================================
gp_Ax3::gp_Ax3 (const gp_Pnt& P,
const gp_Dir& V) : axis(P,V)
{
Standard_Real A = V.X();
Standard_Real B = V.Y();
Standard_Real C = V.Z();
Standard_Real Aabs = A;
if (Aabs < 0) Aabs = - Aabs;
Standard_Real Babs = B;
if (Babs < 0) Babs = - Babs;
Standard_Real Cabs = C;
if (Cabs < 0) Cabs = - Cabs;
gp_Dir D;
// pour determiner l axe X :
// on dit que le produit scalaire Vx.V = 0.
// et on recherche le max(A,B,C) pour faire la division.
// l une des coordonnees du vecteur est nulle.
if ( Babs <= Aabs && Babs <= Cabs) {
if (Aabs > Cabs) D.SetCoord(-C,0., A);
else D.SetCoord( C,0.,-A);
}
else if( Aabs <= Babs && Aabs <= Cabs) {
if (Babs > Cabs) D.SetCoord(0.,-C, B);
else D.SetCoord(0., C,-B);
}
else {
if (Aabs > Babs) D.SetCoord(-B, A,0.);
else D.SetCoord( B,-A,0.);
}
vxdir = D;
vydir = V.Crossed(vxdir);
}
void gp_Ax3::Mirror(const gp_Pnt& P)
{
axis.Mirror (P);
vxdir.Reverse ();
vydir.Reverse ();
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Pnt& P)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (P);
return Temp;
}
void gp_Ax3::Mirror(const gp_Ax1& A1)
{
vydir.Mirror (A1);
vxdir.Mirror (A1);
axis.Mirror (A1);
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Ax1& A1)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (A1);
return Temp;
}
void gp_Ax3::Mirror(const gp_Ax2& A2)
{
vydir.Mirror (A2);
vxdir.Mirror (A2);
axis.Mirror (A2);
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Ax2& A2)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (A2);
return Temp;
}